2. What Does The Bible Actually Define Witnessing As?
Witnessing would be defined as this: A person communicating testimony about something they have experienced.
Here's a great analogy from John MacArthur "The world is like the jury. Christ is on trial before the world. The world is trying to decide about Jesus Christ, and the Holy Spirit is the lawyer for the defense. The Holy Spirit has taken up Christ’s case in the world. And his task is to convince the world that Christ is who he says he is, and the Holy Spirit calls into the courtroom witnesses. That’s us, see."
"But in your hearts honor Christ the Lord as holy, always being prepared to make a defense to anyone who asks you for a reason for the hope that is in you; yet do it with gentleness and respect" — 1 Peter 3:15 ESV
When you approach this responsibility of standing before the world to testify for the sake of Jesus Christ you’ve got to realize that it’s a hostile world. And if the gospel is truly preached, they’re going to react.
If you just talk about love and nice things and talk about God as a good guy and don’t bring in sin and don’t confront people with the fact that they live in violation of God, they may not react negatively. But that isn’t the true gospel either, is it?
You’ve got to confront the truth of sin and righteousness and the truth about Jesus Christ. And when you do that, there’s a sacrifice to be made.
When the Bible speaks of us as witnesses, the greek word "μάρτυς" is used and means "one who dies for his faith" (a martyr) because that was commonly the price of witnessing.
"For you will be a witness for him to everyone of what you have seen and heard." — Acts 22:15 ESV
"If the world hates you, know that it has hated me before it hated you. If you were of the world, the world would love you as its own; but because you are not of the world, but I chose you out of the world, therefore the world hates you. Remember the word that I said to you: ‘A servant is not greater than his master.’ If they persecuted me, they will also persecute you. If they kept my word, they will also keep yours. — John 15:18-20 ESV